<template>
  <view class="login-container">
    <!-- 提示登录的图标 -->
    <uni-icons type="contact-filled" size="100" color="#AFAFAF"></uni-icons>
    <!-- 登录按钮 -->
    <button type="primary" class="btn-login" @click="getUserInfo">一键登录</button>

    <!-- 登录提示 -->
    <view class="tips-text">登录后尽享更多权益</view>
  </view>
</template>

<script>
  import {
    mapState,mapMutations
  } from 'vuex'
  export default {
    name: "my-login",
    data() {
      return {

      }
    },
    computed:{
      ...mapState('m_user',['redirecInfo'])
    },
    methods: {
      ...mapMutations('m_user', ['updateUserInfo','updateToken','updateRedirecInfo']),
      getUserInfo() {

        uni.getUserProfile({
          desc: '求',
          fail: (r) => {
            return uni.$showMsg('您取消了授权！')
          },
          success: (r) => {
            this.updateUserInfo(r.userInfo)
            this.getToken(r)
          },

        })

      },
      // 调用登录接口，换取永久的 token
      async getToken(info) {
        
        // 调用微信登录接口
        const [err, res] = await uni.login().catch(err => err)
        // 判断是否 uni.login() 调用失败
        if (err || res.errMsg !== 'login:ok') return uni.$showError('登录失败！')
        
        // 准备参数对象
        const query = {
          code: res.code,
          encryptedData: info.encryptedData,
          iv: info.iv,
          rawData: info.rawData,
          signature: info.signature
        }

        // 换取 token
        const {
          data: loginResult
        } = await uni.$http.post('/api/public/v1/users/wxlogin', query)
        
        
        this.updateToken("Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1aWQiOjIzLCJpYXQiOjE1NjQ3MzAwNzksImV4cCI6MTAwMTU2NDczMDA3OH0.YPt-XeLnjV-_1ITaXGY2FhxmCe4NvXuRnRB8OMCfnPo")
        this.navigateBack()
        
        // if (loginResult.meta.status !== 200) return uni.$showMsg('登录失败！')
        
        // this.updateToken(loginResult.message.token)
        
      },
      navigateBack(){
        if (this.redirecInfo && this.redirecInfo.openType==="switchTab"){
          uni.switchTab({
            url:this.redirecInfo.from,
            complete:()=>{
              this.updateRedirecInfo(null)
            }
          })
        }
      }
    }

  }
  
</script>

<style lang="scss">
  .login-container {
    // 登录盒子的样式
    height: 750rpx;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: #f8f8f8;
    position: relative;
    overflow: hidden;

    // 绘制登录盒子底部的半椭圆造型
    &::after {
      content: ' ';
      display: block;
      position: absolute;
      width: 100%;
      height: 40px;
      left: 0;
      bottom: 0;
      background-color: white;
      border-radius: 100%;
      transform: translateY(50%);
    }

    // 登录按钮的样式
    .btn-login {
      width: 90%;
      border-radius: 100px;
      margin: 15px 0;
      background-color: #c00000;
    }

    // 按钮下方提示消息的样式
    .tips-text {
      font-size: 12px;
      color: gray;
    }
  }
</style>
